Caitlyn Jenner's ESPYs opening was one of 2015's most powerful TV moments

Caitlyn Jenner gave a moving speech while accepting the Arthur Ashe Award for Courage during Wednesday night’s ESPY Awards, but equally powerful was the video introduction ESPN put together for the 65-year-old.

With narration by Jon Hamm, the package included highlights from Jenner’s incredible decathlon victory at the 1976 Olympics, interviews with her mother, Esther, and daughter, Kendall, and commentary from Jenner herself about the struggles she’s faced during 39 years in the public spotlight.

“I isolated myself all the time. I would feel like a liar all the time,” Jenner said in the video. “It’s too bad because I wasted a lot of my life and nobody really knew who I am. That’s sad.”

Jenner says she came to a revelation, however, “that of all the things I have done in my life, maybe this is my calling.”

“Maybe I can bring understanding on this subject. It’s time that I do my best,” she said.

Since coming out as trans in April, Jenner has made it a point to speak out on behalf of trans men and women around the world. Her speech at the ESPYs was no different, with Jenner making a plea for understanding acceptance. “The people out there wondering what if this all about, whether it’s about courage or controversy or publicity, it’s not just about one person,” she said. “It’s about all of us accepting one another. We’re all different. That’s not a bad thing; that’s a good thing.”

“When she was receiving that medal, I never thought I could be more proud. But I was wrong. I am now even more proud,” Jenner’s mother Esther said in the ESPY intro video. “And believe me, I’m not losing anything. I’m gaining a better relationship with my child.”

Watch the full video, which included the Lifehouse song “Flight,” over at ESPN.